The machine doesn't switch on: check the power cord and fuses.The coffee isn't warm enough: preheat your cups. Descale if necessary.No coffee extraction: clean and descale if necessary.(needs further explanation)Leakage in capsule area: clean the capsule holder and ensure the capsule is inserted correctly.No hot water or steam: clean and descale if necessary.(needs further explanation)The milk doesn't froth: clean the frothing device, we recommend the use of semi-skimmed milk.No water flow: fill the tank and make sure it is correctly inserted.